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Chemistry
Chemistry
Problem
Sulphide ions react with
Na
2
[
Fe
(
NO
)
(
CN
)
5
]
\text{Na}_2[\text{Fe}(\text{NO})(\text{CN})_5]
Na
2
[
Fe
(
NO
)
(
CN
)
5
]
to form a purple coloured compound
Na
4
[
Fe
(
CN
)
5
(
NOS
)
]
\text{Na}_4[\text{Fe}(\text{CN})_5(\text{NOS})]
Na
4
[
Fe
(
CN
)
5
(
NOS
)]
. In the reaction, the oxidation state of iron: a. Changes from +2 to +3 b. Changes from +3 to +2 c. Changes from +2 to +4 d. Does not change
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